39942820449

Names of 39942820449

• Cardinal: 39942820449 can be written as Thirty-nine billion, nine hundred forty-two million, eight hundred twenty thousand, four hundred forty-nine.

Scientific notation

• Scientific notation: 3.9942820449 × 10¹⁰

Factors of 39942820449

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 348

Divisors of 39942820449

• Number of divisors d(n): 81
• Complete list of divisors:
  1 3 7 9 21 31 49 63 93 147 217 279 307 441 651 921 961 1519 1953 2149 2763 2883 4557 6447 6727 8649 9517 13671 15043 19341 20181 28551 45129 47089 60543 66619 85653 94249 135387 141267 199857 282747 295027 423801 466333 599571 659743 848241 885081 1398999 1979229 2065189 2655243 2921719 4196997 4618201 5937687 6195567 8765157 13854603 14456323 18586701 20452033 26295471 41563809 43368969 61356099 90573289 130106907 143164231 184068297 271719867 429492693 634013023 815159601 1288478079 1902039069 4438091161 5706117207 13314273483 39942820449
• Sum of all divisors σ(n): 69576269841
• Sum of proper divisors (its aliquot sum) s(n): 29633449392
• 39942820449 is a deficient number, because the sum of its proper divisors (29633449392) is less than itself. Its deficiency is 10309371057

Bases of 39942820449

• Binary: 100101001100110001110001001001100001₂
• Hexadecimal: 0x94CC71261
• Base-36: ICKX9I9

Squares and roots of 39942820449

• 39942820449 squared (39942820449²) is 1595428905421052561601
• 39942820449 cubed (39942820449³) is 63725930308377705212620254978849
• 39942820449 is a perfect square number. Its square root is 199857
• The cube root of 39942820449 is 3418.3215219597

Scales and comparisons

• 39,942,820,449 seconds is equal to 1,270 years, 3 weeks, 3 hours, 54 minutes, 9 seconds.
• To count from 1 to 39,942,820,449 would take you about two thousand, five hundred forty years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 39942820449 cubic inches would be around 284.9 feet tall.

Recreational maths with 39942820449

• 39942820449 backwards is 94402824993
• The number of decimal digits it has is: 11
• The sum of 39942820449's digits is 54
• More coming soon!